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Yadagiri B, Kaswan RR, Tagare J, Kumar V, Rajesh MN, Singh SP, Karr PA, D'Souza F, Giribabu L. Excited Charge Separation in a π-Interacting Phenothiazine-Zinc Porphyrin-Fullerene Donor-Acceptor Conjugate. J Phys Chem A 2024; 128:4233-4241. [PMID: 38758579 DOI: 10.1021/acs.jpca.4c00976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We have designed, synthesized, and characterized a donor-acceptor triad, SPS-PPY-C60, that consists of a π-interacting phenothiazine-linked porphyrin as a donor and sensitizer and fullerene as an acceptor to seek charge separation upon photoexcitation. The optical absorption spectrum revealed red-shifted Soret and Q-bands of porphyrin due to charge transfer-type interactions involving the two ethynyl bridges carrying electron-rich and electron-poor substituents. The redox properties suggested that the phenothiazine-porphyrin part of the molecule is easier to oxidize and the fullerene part is easier to reduce. DFT calculations supported the redox properties wherein the electron density of the highest molecular orbital (HOMO) was distributed over the donor phenothiazine-porphyrin entity while the lowest unoccupied molecular orbital (LUMO) was distributed over the fullerene acceptor. TD-DFT studies suggested the involvement of both the S2 and S1 states in the charge transfer process. The steady-state emission spectrum, when excited either at porphyrin Soret or visible band absorption maxima, revealed quenched emission both in nonpolar and polar solvents, suggesting the occurrence of excited state events. Finally, femtosecond transient absorption spectral studies were performed to witness the charge separation by utilizing solvents of different polarities. The transient data was further analyzed by GloTarAn by fitting the data with appropriate models to describe photochemical events. From this, the average lifetime of the charge-separated state calculated was found to be 169 ps in benzonitrile, 319 ps in dichlorobenzene, 1.7 ns in toluene for Soret band excitation, and ∼320 ps for Q-band excitation in benzonitrile.
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Affiliation(s)
- B Yadagiri
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Ram Ratan Kaswan
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Jairam Tagare
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Vinay Kumar
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Manne Naga Rajesh
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Surya Prakash Singh
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Paul A Karr
- Department of Physical Sciences and Mathematics, Wayne State College, 111 Main Street, Wayne, Nebraska 68787, United States
| | - Francis D'Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Lingamallu Giribabu
- Department of Polymers and Functional Materials, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research, CSIR-IICT, Tarnaka, Hyderabad 500007, India
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2
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Nenavath S, Duvva N, Kaswan RR, Lim GN, D'Souza F, Giribabu L. Intramolecular Photoinduced Energy and Electron Transfer Reactions in Phenanthroimidazole-Boron Dipyromethane Donor-Acceptor Dyads. J Phys Chem A 2023; 127:6779-6790. [PMID: 37540085 DOI: 10.1021/acs.jpca.3c04141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Donor-acceptor systems in which a donor phenanthroimidazole (PhI) is directly connected to a BODIPY acceptor (Dyad1) and separated by an ethynyl bridge between PhI and BODIPY (Dyad2) have been designed, synthesized, and characterized by various spectroscopic and electrochemical techniques. Optical absorption and 1H NMR characteristics of both dyads with those of constituent individuals suggest that there exists a minimum π-π interaction between phenanthroimidazole and BODIPY. Quenched emission of both the dyads was observed when excited either at phenthaoimidazole absorption maxima or at BODIPY absorption maxima in all three investigated solvents. The detailed spectral analysis provided evidence for an intramolecular photoinduced excitation energy transfer (PEnT) from the singlet excited state of phenanthroimidazole to BODIPY and photoinduced electron transfer (PET) from the ground state of phenanthroimidazole to BODIPY. Transient absorption studies suggest that charge-separated species (PhI•+ - BODIPY•-) are generated at a rate constant of (1.16 ± 0.01) × 108 s-1 for the dyads Dyad1 and (5.15 ± 0.03) × 108 s-1 and for Dyad2 whereas energy transfer rate constants were much higher and were on the order of (1.1 ± 0.02) × 1010 s-1 and (1.6 ± 0.02) × 1010 s-1 for Dyad1 and Dyad2, respectively, signifying their usefulness in light energy harvesting applications.
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Affiliation(s)
- Swathi Nenavath
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Naresh Duvva
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, Telangana, India
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Ram R Kaswan
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Gary N Lim
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Francis D'Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Lingamallu Giribabu
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Srivishnu KS, Rajesh MN, Banerjee D, Soma VR, Giribabu L. Novel phosphorus(V) tetrabenzotriazacorroles: synthesis, characterization, optical, electrochemical, and femtosecond nonlinear optical studies. Dalton Trans 2022; 51:13779-13794. [PMID: 36039610 DOI: 10.1039/d2dt02298b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of three novel tetrabenzotriazacorroles (TBCs) designed with an alkyl substituent tert-butyl group (TBC-tert), an electron donor phenothiazine group (TBC-PTZ) and an energy donor carbazole group (TBC-CBZ) on the peripheral position with phosphorus metal in the cavity have been synthesized. All three compounds were characterized using various spectroscopic techniques and we assessed their femtosecond third-order nonlinear optical (NLO) properties. TBCs exhibit the properties of both phthalocyanines and corroles as they are derived from parent phthalocyanines. The optical studies revealed a new band at ∼450 nm, which was absent in the parent phthalocyanine molecules, and all three compounds obeyed Beer-Lambert's law. Singlet-state quantum yields were measured in different solvents and were found to be in the range of 0.3 to 0.6 for TBC-tert, 0.21 to 0.25 in the case of TBC-PTZ and 0.31 to 0.41 for TBC-CBZ. Time-resolved fluorescence studies revealed lifetimes in the ns regime (typically few ns). The redox properties of the TBCs suggest that they are easier to oxidize and harder to reduce and exhibit multiple oxidation and reduction potentials. Using the Z-scan technique, the third-order NLO properties were investigated with kilohertz and megahertz repetition rate femtosecond pulses at 800 nm. We report the first observation of strong three-photon absorption in these molecules with coefficients of ∼10-22 cm3 W-2 (∼10-13 cm3 W-2) with kHz (MHz) repetition rate fs pulse excitation.
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Affiliation(s)
- K S Srivishnu
- Polymers & Functional Materials Division, Tarnaka, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manne Naga Rajesh
- Polymers & Functional Materials Division, Tarnaka, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dipanjan Banerjee
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India.
| | - Venugopal Rao Soma
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India.
| | - Lingamallu Giribabu
- Polymers & Functional Materials Division, Tarnaka, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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4
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Effect of the iodine atom position on the phosphorescence of BODIPY derivatives: a combined computational and experimental study. Photochem Photobiol Sci 2022; 21:777-786. [PMID: 35023042 DOI: 10.1007/s43630-021-00152-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
A new BODIPY derivative (o-I-BDP) containing an iodine atom in the ortho position of the meso-linked phenyl group was prepared. Photophysical and electrochemical properties of the molecule were compared to previously reported iodo BODIPY derivatives, as well as to the non-iodinated analog. While in the case of derivatives featuring iodine substituents in the BODIPY core, efficient population of the triplet state is accompanied by a substantial positive shift of the reduction potential compared to pristine BODIPY, o-I-BDP displays phosphorescence and simultaneously maintains the electrochemical properties of unsubstituted BODIPYs. A theoretical investigation was settled to analyze results and rationalize the influence of iodine position on electronic and photophysical properties, with the purpose of preparing a fully organic phosphorescent BODIPY derivative. TD-DFT and spin-orbit coupling calculations shed light on the subtle effects played by the introduction of iodine atom in different positions of BODIPY.
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5
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Synthetic approaches for BF2-containing adducts of outstanding biological potential. A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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6
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Chitta R, Badgurjar D, Reddy G, Jain K, Karla VR, Boligorla A, Giribabu L. Light-induced energy transfer followed by electron transfer in axially co-ordinated benzothiazole tethered zinc porphyrin-fullero[C60/C70]pyrrolidine triads. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Benzothiazole (BTZ)-zinc porphyrin (ZnP) dyads, Dyad-1 and Dyad-2 connected together with two different spacers, ester and ethoxy esters, were synthesized and light induced energy and electron transfer events were investigated. Within these dyads, due to the spectral overlap of the BTZ emission with the ZnP absorption, a selective photoexcitation of BTZ at 325 nm resulted in the photo-induced energy transfer (PEnT) from 1BTZ* to ZnP displaying the quenching of the BTZ emission followed by the concurrent appearance of the ZnP emission at 600 and 650 nm suggesting the formation of the 1ZnP* [Formula: see text]. 1BTZ*-ZnP [Formula: see text] BTZ-1ZnP*. When the dyads are titrated with imidazole appended fullero[C[Formula: see text]/C[Formula: see text]]pyrrolidines, four supramolecular triads, involving the axial co-ordination of the imidazole to the zinc center of the ZnP, were formed and the assembly formation was systematically monitored by the optical absorption technique. Cyclic voltammetry and the density functional theory calculations have revealed that, in these triads, the zinc porphyrin acts as an electron donor and fullerene moiety as the electron acceptor. Steady state fluorescence studies revealed that, upon selective excitation of the ZnP moiety at 550 nm, the emission of ZnP at 600 and 650 nm was quenched revealing the occurrence of photo-induced electron transfer (PET) from 1ZnP* to fullerene moiety leading to the formation of charge separated state [Formula: see text]. BTZ-1ZnP* : (ImC[Formula: see text] BTZ-ZnP[Formula: see text]:(ImC[Formula: see text]. More importantly, when the supramolecular triads were excited at 325 nm, the wavelength at which the BTZ absorbs predominantly, the emission of the BTZ moiety which was quenched due to PEnT from 1BTZ* to ZnP followed by the PET from 1ZnP* to fullerene indicates the probability of occurrence of 1BTZ*-ZnP:(ImC[Formula: see text] [Formula: see text] BTZ-1ZnP*[Formula: see text]: (ImC[Formula: see text] BTZ-ZnP[Formula: see text]:(ImC[Formula: see text].
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Affiliation(s)
- Raghu Chitta
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Tehsil: Kishangarh, Dist. Ajmer, Rajasthan — 305817, India
- Department of Chemistry, National Institute of Technology Warangal, Hanamkona, Warangal — 506004, India
| | - Deepak Badgurjar
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Tehsil: Kishangarh, Dist. Ajmer, Rajasthan — 305817, India
| | - Govind Reddy
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
| | - Kanika Jain
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Tehsil: Kishangarh, Dist. Ajmer, Rajasthan — 305817, India
| | - Vijendar Reddy Karla
- Department of Chemistry, National Institute of Technology Warangal, Hanamkona, Warangal — 506004, India
| | - Anjaiah Boligorla
- Department of Chemistry, National Institute of Technology Warangal, Hanamkona, Warangal — 506004, India
| | - Lingamallu Giribabu
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
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7
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Kilavuz E, Turac E, Ilk S, Sahmetlioglu E. Electropolymerizations of two novel
EDOT‐BODIPY
zinc
oxide nanocomposites and
evaluation of their in vitro antibacterial activities. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Esra Kilavuz
- Faculty of Arts and Sciences, Department of Chemistry Nigde Omer Halisdemir University Nigde Turkey
- Central Research Laboratory Nigde Omer Halisdemir University Nigde Turkey
| | - Ersen Turac
- Faculty of Arts and Sciences, Department of Chemistry Nigde Omer Halisdemir University Nigde Turkey
| | - Sedef Ilk
- Faculty of Medicine, Department of Immunology Nigde Omer Halisdemir University Nigde Turkey
| | - Ertugrul Sahmetlioglu
- Nanotechnology Research Center Erciyes University Kayseri Turkey
- Safiye Cikrikcioglu Vocational School, Department of Chemical Technology Kayseri University Kayseri Turkey
- Engineering Architecture and Design Faculty, Department of Engineering Basic Sciences Kayseri University Kayseri Turkey
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Devulapally K, Reddy G, Prasanthkumar S, Jagadeesh A, Soman S, Giribabu L. Effect of auxiliary acceptor on D-π-A based porphyrin sensitizers for dye sensitized solar cells. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500127] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Among the tetrapyrrolic class of compounds, porphyrin based sensitizers have attracted considerable attention due to their excellent performance in dye-sensitized solar cells (DSSCs). Herein, two new donor-[Formula: see text]-acceptor (D-[Formula: see text]-A) concept based porphyrin sensitizers having donor 3-ethynylphenothiazine tethered at meso- position, zinc porphyrin as [Formula: see text]-spacer and acceptor either 3-(4-(benzo[c][1,2,5]thiadiazol-4-yl)phenyl)-2-cyanoacrylic acid (LG22), and 3-(4-(benzo[c][1,2,5]thiadiazol-4-yl)thiophene-2-yl)-2-cyanoacrylicacid (LG23) were designed and synthesized. Both sensitizers were characterized by various spectroscopic techniques and electrochemical methods. Optical, electrochemical and optimized studies suggest that these dyes are suitable for sensitization of nanocrystalline TiO2. The optimized device studies showed the power conversion efficiencies (PCE) of 1.86% and 1.37% for LG22 and LG23 dyes, respectively using [Formula: see text]/[Formula: see text] liquid redox shuttle. Finally, Charge Extraction (CE), Intensity Modulated Photovoltage Spectroscopy (IMVS), Intensity Modulated Photocurrent Spectroscopy (IMPS) and Open Circuit Voltage Decay (OCVD) measurements were adopted to understand in detail the electron transfer properties at various interfaces in a way to understand the performance limiting processes in these novel porphyrin sensitizers.
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Affiliation(s)
- Koteshwar Devulapally
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
| | - Govind Reddy
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
| | - Seelam Prasanthkumar
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
| | - Anooja Jagadeesh
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
| | - Suraj Soman
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
| | - Lingamallu Giribabu
- Polymer and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, New Delhi 201002, India
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Jain K, Duvva N, Roy TK, Giribabu L, Chitta R. Porphyrin bearing phenothiazine pincers as hosts for fullerene binding via concave–convex complementarity: synthesis and complexation study. NEW J CHEM 2021. [DOI: 10.1039/d1nj03727g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Free base porphyrin hosts, m-(PTZ)4-H2P and p-(PTZ)4-H2P, tethered with four phenothiazine moieties at the meso-position via a flexible ethoxy phenyl linker were synthesized and used for the selective complexation of fullerenes, C60 and C70.
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Affiliation(s)
- Kanika Jain
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Bandarsindri, Tehsil: Kishanhgarh, Dist, Ajmer, Rajasthan 305817, India
| | - Naresh Duvva
- Polymers and Functional Materials Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana 500007, India
| | - Tapta Kanchan Roy
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), Dist, Samba, Jammu and Kashmir 181143, India
| | - Lingamallu Giribabu
- Polymers and Functional Materials Division, CSIR - Indian Institute of Chemical Technology, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research, Ghazianbad 201002, India
| | - Raghu Chitta
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Bandarsindri, Tehsil: Kishanhgarh, Dist, Ajmer, Rajasthan 305817, India
- Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Dist, Hanamkonda, Telangana 506004, India
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Badgurjar D, Seetharaman S, D'Souza F, Chitta R. One-Photon Excitation Followed by a Three-Step Sequential Energy-Energy-Electron Transfer Leading to a Charge-Separated State in a Supramolecular Tetrad Featuring Benzothiazole-Boron-Dipyrromethene-Zinc Porphyrin-C 60. Chemistry 2020; 27:2184-2195. [PMID: 33107661 DOI: 10.1002/chem.202004262] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/22/2020] [Indexed: 12/25/2022]
Abstract
A panchromatic triad, consisting of benzothiazole (BTZ) and BF2 -chelated boron-dipyrromethene (BODIPY) moieties covalently linked to a zinc porphyrin (ZnP) core, has been synthesized and systematically characterized by using 1 H NMR spectroscopy, ESI-MS, UV-visible, steady-state fluorescence, electrochemical, and femtosecond transient absorption techniques. The absorption band of the triad, BTZ-BODIPY-ZnP, and dyads, BTZ-BODIPY and BODIPY-ZnP, along with the reference compounds BTZ-OMe, BODIPY-OMe, and ZnP-OMe exhibited characteristic bands corresponding to individual chromophores. Electrochemical measurements on BTZ-BODIPY-ZnP exhibited redox behavior similar to that of the reference compounds. Upon selective excitation of BTZ (≈290 nm) in the BTZ-BODIPY-ZnP triad, the fluorescence of the BTZ moiety is quenched, due to photoinduced energy transfer (PEnT) from 1 BTZ* to the BODIPY moiety, followed by quenching of the BODIPY emission due to sequential PEnT from the 1 BODIPY* moiety to ZnP, resulting in the appearance of the ZnP emission, indicating the occurrence of a two-step singlet-singlet energy transfer. Further, a supramolecular tetrad, BTZ-BODIPY-ZnP:ImC60 , was formed by axially coordinating the triad with imidazole-appended fulleropyrrolidine (ImC60 ), and parallel steady-state measurements displayed the diminished emission of ZnP, which clearly indicated the occurrence of photoinduced electron transfer (PET) from 1 ZnP* to ImC60 . Finally, femtosecond transient absorption spectral studies provided evidence for the sequential occurrence of PEnT and PET events, namely, 1 BTZ* -BODIPY-ZnP:ImC60 →BTZ-1 BODIPY* -ZnP:ImC60 →BTZ-BODIPY-1 ZnP* :ImC60 →BTZ-BODIPY-ZnP.+ :ImC60 .- in the supramolecular tetrad. The evaluated rate of energy transfer, kEnT , was found to be 3-5×1010 s-1 , which was slightly faster than that observed in the case of BODIPY-ZnP and BTZ-BODIPY-ZnP, lacking the coordinated ImC60 . The rate constants for charge separation and recombination, kCS and kCR , respectively, calculated by monitoring the rise and decay of C60 .- were found to be 5.5×1010 and 4.4×108 s-1 , respectively, for the BODIPY-ZnP:ImC60 triad, and 3.1×1010 and 4.9×108 s-1 , respectively, for the BTZ-BODIPY-ZnP:ImC60 tetrad. Initial excitation of the tetrad, promoting two-step energy transfer and a final electron-transfer event, has been successfully demonstrated in the present study.
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Affiliation(s)
- Deepak Badgurjar
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Bandarsindri, Tehsil: Kishangarh, Dist. Ajmer, Rajasthan, 305817, India
| | - Sairaman Seetharaman
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, TX, 76203-5017, USA
| | - Francis D'Souza
- Department of Chemistry, University of North Texas, 1155 Union Circle, #305070, Denton, TX, 76203-5017, USA
| | - Raghu Chitta
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Bandarsindri, Tehsil: Kishangarh, Dist. Ajmer, Rajasthan, 305817, India.,Department of Chemistry, National Institute of Technology-Warangal, Hanamkonda, Warangal, 506004, India
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11
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Gangada S, Ramnagar RA, Sangolkar AA, Pawar R, Nanubolu JB, Roy P, Giribabu L, Chitta R. Excitation-Wavelength-Dependent Light-Induced Electron Transfer and Twisted Intramolecular Charge Transfer in N, N-Bis(4'- tert-butylbiphenyl-4-yl)aniline Functionalized Borondipyrromethenes. J Phys Chem A 2020; 124:9738-9750. [PMID: 33175539 DOI: 10.1021/acs.jpca.0c04789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A series of bis(4'-tert-butylbiphenyl-4-yl)aniline (BBA) functionalized borondipyrromethene (BODIPY) dyads, Dyads 1-3, containing the BBA group tethered to BODIPY moiety either directly or through a phenyl or alkynyl phenyl spacers are synthesized, and the light-mediated charge transfer within the chromophores has been systematically investigated. The crystal structure of Dyad-1 showed a tilt of 44.2° between the BODIPY and BBA molecular planes and intermolecular C-H···π interactions with these moieties. Cyclic voltammetric and computational studies showed that the BBA moiety can act as the electron donor (D) and BODIPY as the electron acceptor (A) and the optical absorption studies revealed that an increase in the conjugation of the linker from Dyad-1 to Dyad-2 resulted in bathochromic shifts. Steady-state fluorescence studies involving photoexcitation of the BBA moiety at 326 nm resulted in the decrease in fluorescence intensity of the BBA, indicating the possibility of sequential occurrence of faster photoinduced energy transfer (PEnT) followed by the photoinduced electron transfer (PET) or solely PET within the dyads, and the driving forces of the charge separation were calculated to be exothermic in all of the employed solvents. Parallel time-resolved fluorescence experiments involving the excitation of BBA moiety also supported the occurrence of charge separation in these dyads. Interestingly, excitation of the BODIPY moiety of Dyad-1 and Dyad-2 at 490 nm in solvents of increasing polarity leads to a red-shifted BODIPY emission with weakened intensity. This spectral behavior indicated the occurrence of emission from the locally excited (LE) state in nonpolar solvents, whereas formation of an LE state followed by the rotation of the chromophores at the D-A bond leads to a low energy twisted intramolecular charge transfer state (TICT), resulting in a charge-separated state BBA+•-BODIPY-• in polar solvents. Furthermore, the hydrophobicity studies involving the solutions of dyads in admixtures of polar tetrahydrofuran (THF) and nonpolar hexanes revealed that when the fraction of hexanes in these mixtures is increased, the emission of BODIPY moiety was observed to be blue-shifted and exhibited enhanced intensity supporting the occurrence of TICT in these dyads.
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Affiliation(s)
- Suneel Gangada
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Kishangarh, Ajmer 305817, Rajasthan, India
| | | | - Akanksha Ashok Sangolkar
- Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Warangal 506004, Telangana, India
| | - Ravinder Pawar
- Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Warangal 506004, Telangana, India
| | | | - Partha Roy
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Kishangarh, Ajmer 305817, Rajasthan, India
| | - Lingamallu Giribabu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Raghu Chitta
- Department of Chemistry, School of Chemical Sciences & Pharmacy, Central University of Rajasthan, Kishangarh, Ajmer 305817, Rajasthan, India.,Department of Chemistry, National Institute of Technology Warangal, Hanamkonda, Warangal 506004, Telangana, India
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12
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Salunke J, Guo X, Liu M, Lin Z, Candeias NR, Priimagi A, Chang J, Vivo P. N-Substituted Phenothiazines as Environmentally Friendly Hole-Transporting Materials for Low-Cost and Highly Stable Halide Perovskite Solar Cells. ACS OMEGA 2020; 5:23334-23342. [PMID: 32954184 PMCID: PMC7496006 DOI: 10.1021/acsomega.0c03184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Most of the high-performing halide perovskite solar cells (PSCs) leverage toxic chlorinated solvents (e.g., o-dichlorobenzene or chlorobenzene) for the hole-transporting material (HTM) processing and/or antisolvents in the perovskite film fabrication. To minimize the environmental and health-related hazards, it is highly desirable, yet at the same time demanding, to develop HTMs and perovskite deposition processes relying on nonhalogenated solvents. In this work, we designed two small molecules, AZO-III and AZO-IV, and synthesized them via simple and environmentally friendly Schiff base chemistry, by condensation of electron-donating triarylamine and phenothiazine moieties connected through an azomethine bridge. The molecules are implemented as HTMs in PSCs upon processing in a nonchlorinated (toluene) solvent, rendering their synthesis and film preparation eco-friendly. The enhancement in the power conversion efficiency (PCE) was achieved when switching from AZO-III (9.77%) to AZO-IV (11.62%), in which the thioethyl group is introduced in the 2-position of the phenothiazine ring. Additionally, unencapsulated PSCs based on AZO-III displayed excellent stabilities (75% of the initial PCEs is retained after 6 months of air exposure for AZO-III to be compared with a 48% decrease of the initial PCE for Spiro-OMeTAD-based devices). The outstanding stability and the extremely low production cost (AZO-III = 9.23 $/g and AZO-IV = 9.03 $/g), together with the environmentally friendly synthesis, purification, and processing, make these materials attractive candidates as HTMs for cost-effective, stable, and eco-friendly PSCs.
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Affiliation(s)
- Jagadish Salunke
- Faculty
of Engineering and Natural Sciences, Tampere
University, P.O. Box 541, FI-33014 Tampere, Finland
| | - Xing Guo
- State
Key Discipline Laboratory of Wide Band Gap Semiconductor Technology,
Shaanxi Joint Key Laboratory of Graphene, School of Microelectronics, Xidian University, 2 South Taibai Road, 710071 Xi’an, P. R. China
| | - Maning Liu
- Faculty
of Engineering and Natural Sciences, Tampere
University, P.O. Box 541, FI-33014 Tampere, Finland
| | - Zhenhua Lin
- State
Key Discipline Laboratory of Wide Band Gap Semiconductor Technology,
Shaanxi Joint Key Laboratory of Graphene, School of Microelectronics, Xidian University, 2 South Taibai Road, 710071 Xi’an, P. R. China
| | - Nuno R. Candeias
- Faculty
of Engineering and Natural Sciences, Tampere
University, P.O. Box 541, FI-33014 Tampere, Finland
- LAQV-REQUIMTE,
Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Arri Priimagi
- Faculty
of Engineering and Natural Sciences, Tampere
University, P.O. Box 541, FI-33014 Tampere, Finland
| | - Jingjing Chang
- State
Key Discipline Laboratory of Wide Band Gap Semiconductor Technology,
Shaanxi Joint Key Laboratory of Graphene, School of Microelectronics, Xidian University, 2 South Taibai Road, 710071 Xi’an, P. R. China
| | - Paola Vivo
- Faculty
of Engineering and Natural Sciences, Tampere
University, P.O. Box 541, FI-33014 Tampere, Finland
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13
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Anitha T, Mrinalini M, Vani D, Prasanthkumar S, Rajender Reddy K, Giribabu L. Synthesis and Opto-electronic Properties of BODIPY o-OPhos Systems. Photochem Photobiol 2020; 96:1182-1190. [PMID: 32621763 DOI: 10.1111/php.13306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/25/2020] [Indexed: 11/26/2022]
Abstract
Herein, we report the versatile synthetic strategy and opto-electronic properties for the phosphorylation of BODIPY derivatives 5aa-5ak by substituting with an electron-donating/withdrawing group at the ortho position. Nevertheless, this new methodology relatively promotes the tolerance of the aldehyde moiety and the high yield for the synthesis of BODIPY o-OPhos derivatives. The photophysical studies suggest improved optical properties due to the inductive effect of various electron-donating/withdrawing groups. The UV-visible and the emission data suggest that BODIPY o-OPhos derivatives emphasize the property of the excited states with an increase in fluorescence intensity and high quantum yields due to the presence of bulky phospsho-triester at the meso- position which hinders the free rotation around the C-Ar bond and facilitates the development of OLEDs and various organophosphorus warfare agents. Electrochemical studies reveal 5ak depicts the ease of redox activity amongst the 5aa-5ak derivatives. The density functional theory indicates the highest occupied molecular orbital on the BODIPY moiety whereas the lowest unoccupied molecular orbital delocalized on BODIPY and the phospho-triester moieties. Thus, the unique development of the novel BODIPY derivatives with improved optical and redox properties pave the way for fluorescent probes and bioimaging techniques.
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Affiliation(s)
- Thipanni Anitha
- Catalysis & Fine Chemicals Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India.,Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India
| | - Madoori Mrinalini
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India.,Polymer & Functional Materials Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India
| | - Damera Vani
- Catalysis & Fine Chemicals Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India.,Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India
| | - Seelam Prasanthkumar
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India.,Polymer & Functional Materials Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India
| | - Kallu Rajender Reddy
- Catalysis & Fine Chemicals Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India.,Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India
| | - Lingamallu Giribabu
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, New Delhi, India.,Polymer & Functional Materials Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, India
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14
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Nguyen V, Yim Y, Kim S, Ryu B, Swamy KMK, Kim G, Kwon N, Kim C, Park S, Yoon J. Molecular Design of Highly Efficient Heavy‐Atom‐Free Triplet BODIPY Derivatives for Photodynamic Therapy and Bioimaging. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002843] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Van‐Nghia Nguyen
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
| | - Yubin Yim
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
| | - Sangin Kim
- Department of Chemistry Korea University Seoul 02841 Republic of Korea
| | - Bokyeong Ryu
- Department of Laboratory Animal Medicine College of Veterinary Medicine Seoul National University Seoul 08826 Republic of Korea
| | - K. M. K. Swamy
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
- Department of Pharmaceutical Chemistry V.L. College of Pharmacy Raichur 584103 India
| | - Gyoungmi Kim
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
| | - Nahyun Kwon
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
| | - C‐Yoon Kim
- Department of Stem Cell Biology School of Medicine Konkuk University Seoul 05029 Republic of Korea
| | - Sungnam Park
- Department of Chemistry Korea University Seoul 02841 Republic of Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Republic of Korea
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15
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Nguyen VN, Yim Y, Kim S, Ryu B, Swamy KMK, Kim G, Kwon N, Kim CY, Park S, Yoon J. Molecular Design of Highly Efficient Heavy-Atom-Free Triplet BODIPY Derivatives for Photodynamic Therapy and Bioimaging. Angew Chem Int Ed Engl 2020; 59:8957-8962. [PMID: 32125064 DOI: 10.1002/anie.202002843] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Indexed: 12/16/2022]
Abstract
Novel BODIPY photosensitizers were developed for imaging-guided photodynamic therapy. The introduction of a strong electron donor to the BODIPY core through a phenyl linker combined with the twisted arrangement between the donor and the BODIPY acceptor is essential for reducing the energy gap between the lowest singlet excited state and the lowest triplet state (ΔEST ), leading to a significant enhancement in the intersystem crossing (ISC) of the BODIPYs. Remarkably, the BDP-5 with the smallest ΔEST (ca. 0.44 eV) exhibited excellent singlet oxygen generation capabilities in both organic and aqueous solutions. BDP-5 also displayed bright emission in the far-red/near-infrared region in the condensed states. More importantly, both in vitro and in vivo studies demonstrated that BDP-5 NPs displayed a high potential for photodynamic cancer therapy and bioimaging.
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Affiliation(s)
- Van-Nghia Nguyen
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Yubin Yim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Sangin Kim
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - Bokyeong Ryu
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea
| | - K M K Swamy
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea.,Department of Pharmaceutical Chemistry, V.L. College of Pharmacy, Raichur, 584103, India
| | - Gyoungmi Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Nahyun Kwon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - C-Yoon Kim
- Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea
| | - Sungnam Park
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Republic of Korea
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16
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Duvva N, Ramya AR, Reddy G, Giribabu L. Intramolecular electron transfer in porphyrin-anthraquinone donor–acceptor systems with varying molecular bridges. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photoinduced electron transfer has been investigated in porphyrin anthraquinone (ZnTTP-AQ) donor–acceptor dyads having either ester (ZnTTP-AQ1) or ether (ZnTTP-AQ2) linkages. Both dyads were characterized by spectroscopic and electrochemical methods. Absorption spectra show absence of any ground state interaction between the porphyrin and anthraquinone moieties. The quenched fluoresence and lifetime indicate electron transfer from the porphyrin to the anthraquinone moiety. The quenching is more pronounced in ZnTTP-AQ1 with ester linkage, suggesting efficient electronic coupling compared to the ether linkage in ZnTTP-AQ2. Computational analysis and frontier molecular orbitals confirmed the formation of charged separated state por[Formula: see text]AQ[Formula: see text]. The electron transfer rates ([Formula: see text] of these triads are found in the range 0.43 × 108 to 10.52 × 109 s[Formula: see text] and are found to be solvent polarity dependent.
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Affiliation(s)
- Naresh Duvva
- Polymer and Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
| | - A. R. Ramya
- Polymer and Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
| | - Govind Reddy
- Polymer and Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Centre for Advanced Materials & Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne VIC3000, Australia
| | - L. Giribabu
- Polymer and Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad 500007, Telangana, India
- Academy of Scientific and Innovative Research, CSIR-IICT, India
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17
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Wan W, Silva MS, McMillen CD, Creager SE, Smith RC. Highly Luminescent Heavier Main Group Analogues of Boron-Dipyrromethene. J Am Chem Soc 2019; 141:8703-8707. [PMID: 31120244 DOI: 10.1021/jacs.9b03235] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The preparation and photophysical properties of two heavier main group element analogues of boron-dipyrromethene (BODIPY) chromophores are described. Specifically, we have prepared dipyrrin complexes of dichlorogallate (GADIPY) or phenylphosphenium (PHODIPY) units. Whereas cationic PHODIPY is labile, decomposing to a phosphine over time, GADIPY is readily prepared in good yield as a crystalline solid having moderate air- and water-stability. Crystallographically characterized GADIPY displays intense green photoluminescence (λem = 505 nm, Φem = 0.91 in toluene). These inaugural heavier main group element analogues of BODIPY offer a glimpse into the potential for elaboration to a panoply of chromophores with diverse photophysical properties.
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Affiliation(s)
- Wang Wan
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States
| | - Mayura S Silva
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States
| | - Colin D McMillen
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States
| | - Stephen E Creager
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States.,Center for Optical Materials Science and Engineering Technology, Clemson University , Anderson , South Carolina 29625 , United States
| | - Rhett C Smith
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States.,Center for Optical Materials Science and Engineering Technology, Clemson University , Anderson , South Carolina 29625 , United States
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18
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Soni D, Duvva N, Badgurjar D, Roy TK, Nimesh S, Arya G, Giribabu L, Chitta R. Hypochlorite-Mediated Modulation of Photoinduced Electron Transfer in a Phenothiazine-Boron dipyrromethene Electron Donor-Acceptor Dyad: A Highly Water Soluble “Turn-On” Fluorescent Probe for Hypochlorite. Chem Asian J 2018; 13:1594-1608. [DOI: 10.1002/asia.201800349] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/02/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Disha Soni
- Department of Chemistry, School of Chemical Sciences and Pharmacy; Central University of Rajasthan; Bandarsindri Tehsil: Kishangarh, Dist. Ajmer Rajasthan- 305817 India
| | - Naresh Duvva
- Inorganic & Physical Chemistry Division; Indian Institute of Chemical Technology; Tarnaka Hyderabad Telangana- 500007 India
| | - Deepak Badgurjar
- Department of Chemistry, School of Chemical Sciences and Pharmacy; Central University of Rajasthan; Bandarsindri Tehsil: Kishangarh, Dist. Ajmer Rajasthan- 305817 India
| | - Tapta Kanchan Roy
- Department of Chemistry and Chemical Sciences; Central University of Jammu; Jammu- 180011 India
| | - Surendra Nimesh
- Department of Biotechnology; School of Life Sciences; Central University of Rajasthan; Bandarsindri Tehsil: Kishangarh, Dist. Ajmer Rajasthan- 305817 India
| | - Geeta Arya
- Department of Biotechnology; School of Life Sciences; Central University of Rajasthan; Bandarsindri Tehsil: Kishangarh, Dist. Ajmer Rajasthan- 305817 India
| | - Lingamallu Giribabu
- Inorganic & Physical Chemistry Division; Indian Institute of Chemical Technology; Tarnaka Hyderabad Telangana- 500007 India
| | - Raghu Chitta
- Department of Chemistry, School of Chemical Sciences and Pharmacy; Central University of Rajasthan; Bandarsindri Tehsil: Kishangarh, Dist. Ajmer Rajasthan- 305817 India
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19
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Reddy G, Duvva N, Seetharaman S, D’Souza F, Giribabu L. Photoinduced energy transfer in carbazole–BODIPY dyads. Phys Chem Chem Phys 2018; 20:27418-27428. [DOI: 10.1039/c8cp05509b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of carbazole (CBZ)–boron dipyrromethene (BODIPY) based donor–acceptor dyads, CB1, CB2, and CB3, with CBZ as an energy donor, tethered together with spacers of varied sizes i.e., phenyl bridge, biphenyl bridge and diphenylethyne bridge, respectively, are reported.
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Affiliation(s)
- Govind Reddy
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Naresh Duvva
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | | | | | - Lingamallu Giribabu
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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20
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Achary BS, Ramya AR, Nanubolu JB, Seetharaman S, Lim GN, Jang Y, D’Souza F, Giribabu L. Axially substituted phosphorous(v) corrole with polycyclic aromatic hydrocarbons: syntheses, X-ray structures, and photoinduced energy and electron transfer studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj04363e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Excited state energy and electron transfer processes in naphthalene and pyrene appended phosphorous(v) corroles.
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Affiliation(s)
- B. Shivaprasad Achary
- Inorganic & Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - A. R. Ramya
- Inorganic & Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | | | - Gary N. Lim
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | - Youngwoo Jang
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | | | - Lingamallu Giribabu
- Inorganic & Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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21
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Zhao J, Chen K, Hou Y, Che Y, Liu L, Jia D. Recent progress in heavy atom-free organic compounds showing unexpected intersystem crossing (ISC) ability. Org Biomol Chem 2018; 16:3692-3701. [DOI: 10.1039/c8ob00421h] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The intersystem crossing (ISC) of the heavy atom-free triplet photosensitizers was summarised, including the spin–orbit charge transfer ISC mechanism.
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Affiliation(s)
- Jianzhang Zhao
- School of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
- China
- Key Laboratory of Energy Materials Chemistry
| | - Kepeng Chen
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yuqi Hou
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yuanyuan Che
- School of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
- China
- Key Laboratory of Energy Materials Chemistry
| | - Lang Liu
- School of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
- China
- Key Laboratory of Energy Materials Chemistry
| | - Dianzeng Jia
- Key Laboratory of Energy Materials Chemistry
- Ministry of Education
- Institute of Applied Chemistry
- Xinjiang University
- Urumqi 830046
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22
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Chen K, Yang W, Wang Z, Iagatti A, Bussotti L, Foggi P, Ji W, Zhao J, Di Donato M. Triplet Excited State of BODIPY Accessed by Charge Recombination and Its Application in Triplet–Triplet Annihilation Upconversion. J Phys Chem A 2017; 121:7550-7564. [PMID: 28866887 DOI: 10.1021/acs.jpca.7b07623] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kepeng Chen
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Wenbo Yang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Zhijia Wang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Alessandro Iagatti
- LENS (European Laboratory for Non-Linear Spectroscopy), Via N. Carrara 1, 50019 Sesto Fiorentino, Italy
- INO, Istituto Nazionale di Ottica Largo Enrico, Fermi 6, I-50125 Florence, Italy
| | - Laura Bussotti
- LENS (European Laboratory for Non-Linear Spectroscopy), Via N. Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Paolo Foggi
- LENS (European Laboratory for Non-Linear Spectroscopy), Via N. Carrara 1, 50019 Sesto Fiorentino, Italy
- INO, Istituto Nazionale di Ottica Largo Enrico, Fermi 6, I-50125 Florence, Italy
- Dipartimento
di Chimica, Università di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Wei Ji
- School
of Chemistry, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Jianzhang Zhao
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Mariangela Di Donato
- LENS (European Laboratory for Non-Linear Spectroscopy), Via N. Carrara 1, 50019 Sesto Fiorentino, Italy
- INO, Istituto Nazionale di Ottica Largo Enrico, Fermi 6, I-50125 Florence, Italy
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23
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Triphenylamine corrole dyads: Synthesis, characterization and substitution effect on photophysical properties. J CHEM SCI 2017. [DOI: 10.1007/s12039-016-1219-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Soni D, Gangada S, Duvva N, Roy TK, Nimesh S, Arya G, Giribabu L, Chitta R. Hypochlorite-promoted inhibition of photo-induced electron transfer in phenothiazine–borondipyrromethene donor–acceptor dyad: a cost-effective and metal-free “turn-on” fluorescent chemosensor for hypochlorite. NEW J CHEM 2017. [DOI: 10.1039/c7nj00516d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
APTZ-BODIPY based fluorescent chemosensor was designed and used for hypochlorite detection.
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Affiliation(s)
- Disha Soni
- Department of Chemistry
- School of Chemical Sciences & Pharmacy
- Central University of Rajasthan
- Bandar Sindri
- India
| | - Suneel Gangada
- Department of Chemistry
- School of Chemical Sciences & Pharmacy
- Central University of Rajasthan
- Bandar Sindri
- India
| | - Naresh Duvva
- Inorganic & Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Tapta Kanchan Roy
- Department of Chemistry and Chemical Sciences
- Central University of Jammu
- Jammu – 180001
- India
| | - Surendra Nimesh
- Department of Biotechnology
- School of Life Sciences
- Central University of Rajasthan
- Bandar indri
- India
| | - Geeta Arya
- Department of Biotechnology
- School of Life Sciences
- Central University of Rajasthan
- Bandar indri
- India
| | - Lingamallu Giribabu
- Inorganic & Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Raghu Chitta
- Department of Chemistry
- School of Chemical Sciences & Pharmacy
- Central University of Rajasthan
- Bandar Sindri
- India
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25
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Kudisch B, Maiuri M, Blas-Ferrando VM, Ortiz J, Sastre-Santos Á, Scholes GD. Solvent-dependent photo-induced dynamics in a non-rigidly linked zinc phthalocyanine–perylenediimide dyad probed using ultrafast spectroscopy. Phys Chem Chem Phys 2017; 19:21078-21089. [DOI: 10.1039/c7cp02143g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A solvent dependent pump–probe study on an artificial light harvesting dyad reveals static and dynamic system-bath interactions observed in ultrafast photoinduced energy and electron transfer.
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Affiliation(s)
- Bryan Kudisch
- Department of Chemistry
- Princeton University
- Princeton
- USA
| | | | | | - Javier Ortiz
- Área de Química Orgánica
- Instituto de Bioingeniería
- Universidad Miguel Hernández
- Elche 03202
- Spain
| | - Ángela Sastre-Santos
- Área de Química Orgánica
- Instituto de Bioingeniería
- Universidad Miguel Hernández
- Elche 03202
- Spain
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26
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Tian Y, Jin J, Wang C, Lv W, Li X, Che X, Gong Y, Li Y, Li Q, Hou J, Wang PG, Shen J. A sub-milligram-synthesis protocol for in vitro screening of HDAC11 inhibitors. Bioorg Med Chem Lett 2016; 26:2434-2437. [PMID: 27055940 DOI: 10.1016/j.bmcl.2016.03.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 03/25/2016] [Accepted: 03/31/2016] [Indexed: 02/05/2023]
Abstract
This work demonstrated the high efficiency of a sub-milligram-synthesis based medicinal chemistry method. Totally 72 compounds, consisting a tri-substituted pyrrolidine core, were prepared. Around 0.1mg of each compound was solid-phase synthesized. Based on the additive property of UV absorptions of unconjugated chromophores of a molecule, these compounds were quantified by UV measurement. A hit, whose IC50 value was 1.2μM in HDAC11 inhibition assays, highlights the applicability of the approach reported here in future optimization works.
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Affiliation(s)
- Yinping Tian
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Jin Jin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Congying Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Wenhui Lv
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Xuewei Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Xiaona Che
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Yanchao Gong
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Yanjun Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Quanli Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China
| | - Jingli Hou
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, People's Republic of China
| | - Peng G Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China.
| | - Jie Shen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, People's Republic of China.
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27
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Jain K, Duvva N, Badgurjar D, Giribabu L, Chitta R. Synthesis and spectroscopic studies of axially bound tetra(phenothiazinyl)/tetra(bis(4′-tert-butylbiphenyl-4-yl)aniline)-zinc(II)porphyrin-fullero[C60 & C70]pyrrolidine donor–acceptor triads. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.01.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Gupta N, Reja SI, Bhalla V, Gupta M, Kaur G, Kumar M. A bodipy based fluorescent probe for evaluating and identifying cancer, normal and apoptotic C6 cells on the basis of changes in intracellular viscosity. J Mater Chem B 2016; 4:1968-1977. [PMID: 32263074 DOI: 10.1039/c5tb02476e] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The applications of a bodipy based probe 1 for the identification of diseased cell population out of normal cells on the basis of changes in intracellular viscosity have been explored. Probe 1 works on the principle of restriction of rotation in viscous medium and the molecular rotor nature of probe 1 is supported by low temperature 1H NMR and variable dihedral angle DFT and TD-DFT studies. More importantly, probe 1 is the first probe which shows its practical application in monitoring micro-viscosity changes in a cell based model system of undifferentiated, differentiated and apoptotic C6 glial cells. Further, probe 1 can effectively monitor the apoptosis pathway by showing an increase in fluorescence intensity from cancerous cells to apoptotic cells via real time live-cell video imaging. Moreover, the viscosity changes in living cells were proved by fluorescence lifetime imaging (FLIM) studies, flow cytometry using Annexin-V and Bcl-xl expression by immunocytofluorescence (ICC) and western blot analysis.
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Affiliation(s)
- Neha Gupta
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-1, Guru Nanak Dev University, Amritsar, Punjab, India.
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